<template>
  <div>
    <div class="search">
      <input type="text" v-model="keyword" placeholder="输入城市名或拼音" class="search-input"/>
    </div>

    <div class="search-content" ref="search" v-show="keyword">
      <ul>
        <li class="search-item border-bottom" v-for="item in list" :key="item.id" @click="handleCityClick(item.name)">
          {{item.name}}
        </li>
        <li class="search-item border-bottom" v-show="hasNotData">
          没有找到匹配数据
        </li>
      </ul>
    </div>
  </div>

</template>



<script>

  import Bscroll from 'better-scroll'
  import {mapState, mapMutations} from 'vuex'

  export default {
    name: 'CitySearch',
    props: {
      cities: Object
    },
    data() {
      return {
        keyword: '',
        list: [],
        timer: null
      }
    },
    computed: {
      hasNotData() {
        return !this.list.length;
      }
    },
    watch: {
      keyword() {
        if (this.timer){
          clearTimeout(this.timer);
        }
        if (!this.keyword){
          this.list = [];
          return;
        }
        this.timer = setTimeout(() => {
          const result = []
          for (let i in this.cities) {
            this.cities[i].forEach((value) => {
              if (value.spell.indexOf(this.keyword) > -1 || value.name.indexOf(this.keyword) > -1) {
                result.push(value)
              }
            })
          }
          this.list = result
        }, 100);
      }
    },
    methods: {
      handleCityClick(city){
        // this.$store.commit('changeCityData', city);
        this.changeCityData(city);
        //路由跳回首页
        this.$router.push('/')
      },
      ...mapMutations(['changeCityData'])
    },
    mounted () {
      this.scroll = new Bscroll(this.$refs.search)
    }
  }
</script>

<style scoped lang="stylus">

  @import "~styles/varibles.styl"

  .search
    height: .72rem
    padding: 0 .1rem
    background: $bgColor
    .search-input
      box-sizing: border-box
      height: .62rem
      width: 100%
      line-height: .62rem
      text-align: center
      border-radius: .06rem
      color: #666
      padding: 0 .1rem
  .search-content
    position: absolute
    top: 1.58rem
    z-index: 1
    overflow: hidden
    right: 0
    left: 0
    bottom: 0
    .search-item
      line-height: .62rem
      padding-left: .2rem
      color: #666
      background: #fff
</style>
